Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel, which stems from a memory leak in the wrong path of dommap in the nommu component...

The vulnerability of the get_user_pages_unlocked() function in the nitro_enclaves component of the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the getuserpagesunlocked function in the nitroenclaves component of the Linux operating system’s kernel is related to the use of this function to handle the mmap assertion. Exploiting this vulnerability could allow a attacker to trigger a service failure...

CVE-2024-42317

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: avoid PMD-size page cache if needed xarray can't support arbitrary page cache size. the largest and supported page cache size is defined as MAXPAGECACHEORDER by commit 099d90642a71 "mm/filemap: make MAXPAGECACHEORD...

CVE-2024-42317 mm/huge_memory: avoid PMD-size page cache if needed

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: avoid PMD-size page cache if needed xarray can't support arbitrary page cache size. the largest and supported page cache size is defined as MAXPAGECACHEORDER by commit 099d90642a71 "mm/filemap: make MAXPAGECACHEORD...

kernel: userfaultfd: fix a race between writeprotect and exit_mmap()

A possible race condition flaw was found in the Linux kernel. When a process exits, its virtual memory areas VMAs are removed by exitmmap, and at the same time, userfaultfdwriteprotect is called...

CVE-2024-42243 mm/filemap: make MAX_PAGECACHE_ORDER acceptable to xarray

In the Linux kernel, the following vulnerability has been resolved: mm/filemap: make MAXPAGECACHEORDER acceptable to xarray Patch series "mm/filemap: Limit page cache size to that supported by xarray", v2. Currently, xarray can't support arbitrary page cache size. More details can be found from t...

SUSE CVE-2024-42075

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix remap of arena. The bpf arena logic didn't account for mremap operation. Add a refcnt for multiple mmap events to prevent use-after-free in arenavmclose...

DEBIAN-CVE-2024-42075

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix remap of arena. The bpf arena logic didn't account for mremap operation. Add a refcnt for multiple mmap events to prevent use-after-free in arenavmclose...

DEBIAN-CVE-2024-41083

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix netfspagemkwrite to check folio-mapping is valid Fix netfspagemkwrite to check that folio-mapping is valid once it has taken the folio lock as filemappagemkwrite does. Without this, generic/247 occasionally oopses with...

UBUNTU-CVE-2024-41083

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix netfspagemkwrite to check folio-mapping is valid Fix netfspagemkwrite to check that folio-mapping is valid once it has taken the folio lock as filemappagemkwrite does. Without this, generic/247 occasionally oopses with...

CVE-2024-42075 bpf: Fix remap of arena.

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix remap of arena. The bpf arena logic didn't account for mremap operation. Add a refcnt for multiple mmap events to prevent use-after-free in arenavmclose...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a mremap operation not being accounted for in the bpf arena logic, which requires reference counts to be add...

SUSE CVE-2022-48839

In the Linux kernel, the following vulnerability has been resolved: net/packet: fix slab-out-of-bounds access in packetrecvmsg syzbot found that when an AFPACKET socket is using PACKETCOPYTHRESH and mmap operations, tpacketrcv is queueing skbs with garbage in skb-cb, triggering a too big copy 1...

CVE-2024-40918

In the Linux kernel, the following vulnerability has been resolved: parisc: Try to fix random segmentation faults in package builds PA-RISC systems with PA8800 and PA8900 processors have had problems with random segmentation faults for many years. Systems with earlier processors are much more...

CVE-2022-48839

In the Linux kernel, the following vulnerability has been resolved: net/packet: fix slab-out-of-bounds access in packetrecvmsg syzbot found that when an AFPACKET socket is using PACKETCOPYTHRESH and mmap operations, tpacketrcv is queueing skbs with garbage in skb-cb, triggering a too big copy 1...

DEBIAN-CVE-2022-48839

In the Linux kernel, the following vulnerability has been resolved: net/packet: fix slab-out-of-bounds access in packetrecvmsg syzbot found that when an AFPACKET socket is using PACKETCOPYTHRESH and mmap operations, tpacketrcv is queueing skbs with garbage in skb-cb, triggering a too big copy 1...

CVE-2022-48839

In the Linux kernel, the following vulnerability has been resolved: net/packet: fix slab-out-of-bounds access in packetrecvmsg syzbot found that when an AFPACKET socket is using PACKETCOPYTHRESH and mmap operations, tpacketrcv is queueing skbs with garbage in skb-cb, triggering a too big copy 1...

UBUNTU-CVE-2022-48839

In the Linux kernel, the following vulnerability has been resolved: net/packet: fix slab-out-of-bounds access in packetrecvmsg syzbot found that when an AFPACKET socket is using PACKETCOPYTHRESH and mmap operations, tpacketrcv is queueing skbs with garbage in skb-cb, triggering a too big copy 1...

CVE-2022-48839

In CVE-2022-48839, the Linux kernel vulnerability is in net/packet, where slab-out-of-bounds access occurs in packet_recvmsg() when AF_PACKET sockets use PACKET_COPY_THRESH with mmap. The issue arises from tpacket_rcv() queuing skbs with garbage in skb->cb[], leading to an oversized copy to us...

CVE-2022-48839 net/packet: fix slab-out-of-bounds access in packet_recvmsg()

In the Linux kernel, the following vulnerability has been resolved: net/packet: fix slab-out-of-bounds access in packetrecvmsg syzbot found that when an AFPACKET socket is using PACKETCOPYTHRESH and mmap operations, tpacketrcv is queueing skbs with garbage in skb-cb, triggering a too big copy 1...